Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320734 | Test apparatus for measuring concentration of test substance in liquid | Koichi Yamasaki, Tatsuhiko Osaka, Hitonaga Nakano, Toji Mukai, Yasuhiro Nagata +2 more | 1994-06-14 |
| 5228972 | Apparatus for measuring concentration of test substance in liquid | Tatsuhiko Osaka, Koichi Yamasaki, Hiroshi Terawaki, Toji Mukai, Harumi Tanaka +1 more | 1993-07-20 |